Garmin gpsmap 441s Manuale Utente

Using Charts

active Tracks—manage tracks (

).

Saved Tracks—view a list of tracks that have been saved.

other Vessels—view information about other vessels. To view 

information about other vessels, your unit must be connected to an 

external AIS (Automatic Identification System) or DSC (Digital 

Selective Calling) device.
weather Radar—turn the display of NEXRAD weather on or 

off. (The weather feature is only available if the chartplotter is 

connected to a weather module and you have an XM subscription.) 

data bars (

)—show or hide cruising, navigation, fishing, 

fuel, sailing numbers, or compass tape. When on, compass tape 

is displayed at the top of the Perspective 3D screen to provide a 

graphical representation of heading.
Chart appearance—customize the Perspective 3D chart.

Range Rings—toggles the range rings on or off to provide 

distance measurement.
Lane width—adjusts the width of the course line drawn when 

navigating. This setting also affects routes (Route To), but does 

not affect automatic guidance (guide To).

A BlueChart g2 Vision SD card offers Mariner’s Eye 3D, that 

provides a detailed three-dimensional view from above and behind 

the boat (according to your course), and provides a visual navigation 

aid. This view is helpful when navigating tricky shoals, reefs, 

bridges, or channels, and is beneficial when trying to identify entry 

and exit routes in unfamiliar harbors or anchorages.